Silent Ball Hot Potato

Angles

100

If x and an angle measuring 120^o are vertically opposite, what is x equal to?

120^o

200

Angle x and 115^o are corresponding angles. What is the value of x?

115^o

300

Find the missing angle of a triangle with these angles:

60^o, 40^o, ?^o

80^o

400

Line AB is perpendicular to line CD, if the angle created by these two lines is bisected, what are the sizes of the smaller angles?

45^o and 45^o

500

Angle x is complementary with angle a.

Angle a and 80^o are alternate angles in parallel lines.

What is the value of x?

10^o

Geometric Figures

100

Identify a quadrilateral that has all sides equal

Square or rhombus

200

Which quadrilateral has one pair of opposite sides parallel?

Trapezium

300

True or false? A trapezium is a special type of parallelogram.

False

400

What is the one property that turns a parallelogram into a rectangle?

All angles are right angles/equal to 90^o

500

How many edges does a trapezoidal prism have?

12

Data

100

What is the mode of this data set?

15, 6, 18, 3, 15, 11, 8

15

200

What is the range of this data set?

15, 6, 18, 3, 15, 11, 8

18 - 8 = 10

300

What is the median of the following set of data?

2, 1, 4, 4, 3, 6

1, 2, 3, 4, 4, 6

3.5

500

Layla did 4 quizzes marked out of 10, her marks on the first 3 quizzes were: 7, 7, and 8. If her average is 8, what mark did she get on the last quiz?

10

Transform & Symmetry

100

What is the name for the transformation that causes an image to slide?

Translation

200

Does an equilateral triangle have rotational symmetry? If so, what order?

Yes, 3

300

How many axes of symmetry does a rhombus have?

2

400

A triangle has the angles 45^o, 90^o and 45^o. Does it have rotational symmetry? If so, what order?

No

500

If the point (5, -7) is rotated 90 anti-clockwise about the origin, what is the image of the point?

(7, 5)

Time

100

Convert 8:25pm to 24hour time

20:25 or 2025h

200

Calculate the hours and minutes between 10:50am and 12:10pm.

1 hour 20 minutes OR 80 minutes

300

If the time is 12pm in Greenwich, what is the time in Sydney(+10)?

10pm

400

If it is 10pm Friday in Cairo(+4), what is the time and day in Australia(+10)?

4am Saturday

500

If it is 4am Tuesday in New York(-5), what is the time and day in Australia(+10)?

7pm Tuesday